2007-10-25 08:36:23 · 8 answers · asked by itai d 1 in Science & Mathematics ➔ Medicine
The body can reject blood transfused if found incompatible or mismatched. A blood transfusion reaction means body rejection. It is an "antibody-mediated response" by the body when donated blood with pre-existing antibodies are transfused. The action is pretty quick (hyperacute) and such antigen-antibody reaction are resolved by stopping the transfusion and administering medication to stop producing the complement protein that attacks the "invader". Otherwise if there is no pre-existing antibody, there will be no reaction or rejection.
The other transplants rejection are mediated by "T-cells" responses to a different proteins on the donated organ and the immune reaction is more extensive which requires medicines to suppress the reaction (immunosuppressive drugs).
Taking off the transplanted organ is not as easy as stopping the blood transfusion,so generally other transplant rejection is more seen clearly than that of blood rejection. However,be aware that blood rejection is highly dangerous and fatal as well and the reaction is more quicker.
2007-10-25 09:21:19 · answer #1 · answered by ♥ lani s 7 · 0⤊ 0⤋
It can and does, however rarely as we know much more about transfusing blood. When blood is transfused the blood type A, B and O , D type and other less known ones is matched. If the doner and recipient are a match then the transfusion is sucessful.
Blood transfusion rejections are rare because blood can be removed from the body and tested. So before it is given the donor and recipient blood is mixed together and tests are done to see if there will be a reaction in the body. If it is an emergency the universal blood O negative is given. This prevents a transfusion reaction.
Obviously this can't be done for organs. Organs are currently transplanted according to both blood type and HLA antigens (markers on our cells saying it is ours). If it's a perfect match the transplant is not rejected. HLA is like blood types but there is more important ones than Blood groups hence it is harder to match so there is more rejections.
2007-10-25 10:59:34 · answer #2 · answered by Anonymous · 0⤊ 0⤋
It can and it does.
When you get a transfusion, they "type" the blood to determine which type of blood they should give you.
It is true that if this is a dire emergency (you are bleeding out), any blood is better than no blood. That is, blood of the wrong type is still capable of transporting oxygen to where it is needed even though eventually the body will attack it.
If someone is bleeding out and they have limited supplies of blood, they'll give the person the wrong kind of blood first followed by the right kind on the idea that the first blood will probably just be bled out again.
2007-10-25 08:38:39 · answer #3 · answered by Elana 7 · 0⤊ 1⤋
They match the blood type so it's the same thing.
It'll reject the blood if it's a different type
2007-10-25 08:39:27 · answer #4 · answered by A 5 · 0⤊ 0⤋
It will.
Unless the blood types between the donor and recipient match - the reason behind developing blood typing.
http://en.wikipedia.org/wiki/Blood_transfusion
2007-10-25 08:40:32 · answer #5 · answered by Jay 5 · 0⤊ 0⤋
because its the same blood type in which the body needs to operate...kinda like why diesel wont work in a gas engine.......
2007-10-25 09:17:41 · answer #6 · answered by Sandy B 5 · 0⤊ 0⤋
Sometimes it does. That is where the problem lies in getting blood transfussions. You can get STD or hepititis or AIDS.
It is very dangerous.
2007-10-25 08:40:05 · answer #7 · answered by cloud 7 · 0⤊ 1⤋
less factors to reject
2007-10-25 08:38:44 · answer #8 · answered by wizjp 7 · 0⤊ 0⤋